mod/item.php

   1 <?php
   2 /**
   3  * @file mod/item.php
   4  */
   5
   6 /*
   7  * This is the POST destination for most all locally posted
   8  * text stuff. This function handles status, wall-to-wall status,
   9  * local comments, and remote coments that are posted on this site
  10  * (as opposed to being delivered in a feed).
  11  * Also processed here are posts and comments coming through the
  12  * statusnet/twitter API.
  13  *
  14  * All of these become an "item" which is our basic unit of
  15  * information.
  16  */
  17
  18 use Friendica\App;
  19 use Friendica\Content\Pager;
  20 use Friendica\Content\Text\BBCode;
  21 use Friendica\Core\Hook;
  22 use Friendica\Core\Logger;
  23 use Friendica\Core\Protocol;
  24 use Friendica\Core\Session;
  25 use Friendica\Core\System;
  26 use Friendica\Core\Worker;
  27 use Friendica\Database\DBA;
  28 use Friendica\DI;
  29 use Friendica\Model\Attach;
  30 use Friendica\Model\Contact;
  31 use Friendica\Model\Conversation;
  32 use Friendica\Model\FileTag;
  33 use Friendica\Model\Item;
  34 use Friendica\Model\Photo;
  35 use Friendica\Model\Term;
  36 use Friendica\Object\EMail\ItemCCEMail;
  37 use Friendica\Protocol\Activity;
  38 use Friendica\Protocol\Diaspora;
  39 use Friendica\Util\DateTimeFormat;
  40 use Friendica\Util\Security;
  41 use Friendica\Util\Strings;
  42 use Friendica\Worker\Delivery;
  43
  44 require_once __DIR__ . '/../include/items.php';
  45
  46 function item_post(App $a) {
  47         if (!Session::isAuthenticated()) {
  48                 return 0;
  49         }
  50
  51         $uid = local_user();
  52
  53         if (!empty($_REQUEST['dropitems'])) {
  54                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  55                 drop_items($arr_drop);
  56                 $json = ['success' => 1];
  57                 echo json_encode($json);
  58                 exit();
  59         }
  60
  61         Hook::callAll('post_local_start', $_REQUEST);
  62
  63         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  64
  65         $api_source = $_REQUEST['api_source'] ?? false;
  66
  67         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  68
  69         $return_path = $_REQUEST['return'] ?? '';
  70         $preview = intval($_REQUEST['preview'] ?? 0);
  71
  72         /*
  73          * Check for doubly-submitted posts, and reject duplicates
  74          * Note that we have to ignore previews, otherwise nothing will post
  75          * after it's been previewed
  76          */
  77         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  78                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  79                         Logger::log("item post: duplicate post", Logger::DEBUG);
  80                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  81                 } else {
  82                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  83                 }
  84         }
  85
  86         // Is this a reply to something?
  87         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  88         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  89
  90         $thread_parent_id = 0;
  91         $thread_parent_contact = null;
  92
  93         $toplevel_item = null;
  94         $parent_user = null;
  95
  96         $parent_contact = null;
  97
  98         $objecttype = null;
  99         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 100         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 101
 102         if ($toplevel_item_id || $thr_parent_uri) {
 103                 if ($toplevel_item_id) {
 104                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 105                 } elseif ($thr_parent_uri) {
 106                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 107                 }
 108
 109                 // if this isn't the top-level parent of the conversation, find it
 110                 if (DBA::isResult($toplevel_item)) {
 111                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 112                         $thread_parent_id = $toplevel_item['id'];
 113                         $thr_parent_uri = $toplevel_item['uri'];
 114                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 115
 116                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 117                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 118                         }
 119                 }
 120
 121                 if (!DBA::isResult($toplevel_item)) {
 122                         notice(DI::l10n()->t('Unable to locate original post.') . EOL);
 123                         if (!empty($_REQUEST['return'])) {
 124                                 DI::baseUrl()->redirect($return_path);
 125                         }
 126                         exit();
 127                 }
 128
 129                 $toplevel_item_id = $toplevel_item['id'];
 130                 $parent_user = $toplevel_item['uid'];
 131
 132                 $objecttype = Activity\ObjectType::COMMENT;
 133         }
 134
 135         if ($toplevel_item_id) {
 136                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 137         }
 138
 139         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 140         $app         = strip_tags($_REQUEST['source'] ?? '');
 141         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 142         $object      = $_REQUEST['object'] ?? '';
 143
 144         // Don't use "defaults" here. It would turn 0 to 1
 145         if (!isset($_REQUEST['wall'])) {
 146                 $wall = 1;
 147         } else {
 148                 $wall = $_REQUEST['wall'];
 149         }
 150
 151         // Ensure that the user id in a thread always stay the same
 152         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 153                 $profile_uid = $parent_user;
 154         }
 155
 156         // Check for multiple posts with the same message id (when the post was created via API)
 157         if (($message_id != '') && ($profile_uid != 0)) {
 158                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 159                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 160                         return 0;
 161                 }
 162         }
 163
 164         // Allow commenting if it is an answer to a public post
 165         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 166
 167         // Now check that valid personal details have been provided
 168         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 169                 notice(DI::l10n()->t('Permission denied.') . EOL);
 170
 171                 if (!empty($_REQUEST['return'])) {
 172                         DI::baseUrl()->redirect($return_path);
 173                 }
 174
 175                 exit();
 176         }
 177
 178         // Init post instance
 179         $orig_post = null;
 180
 181         // is this an edited post?
 182         if ($post_id > 0) {
 183                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 184         }
 185
 186         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 187
 188         if (!DBA::isResult($user) && !$toplevel_item_id) {
 189                 return 0;
 190         }
 191
 192         $categories = '';
 193         $postopts = '';
 194         $emailcc = '';
 195         $body = $_REQUEST['body'] ?? '';
 196         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 197
 198         // If we have a speparate attachment, we need to add it to the body.
 199         if (!empty($has_attachment)) {
 200                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 201                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 202                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 203
 204                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 205                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 206
 207                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 208                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 209                 $attachment = [
 210                         'type'   => $attachment_type,
 211                         'title'  => $attachment_title,
 212                         'text'   => $attachment_text,
 213                         'url'    => $attachment_url,
 214                 ];
 215
 216                 if (!empty($attachment_img_src)) {
 217                         $attachment['images'] = [
 218                                 0 => [
 219                                         'src'    => $attachment_img_src,
 220                                         'width'  => $attachment_img_width,
 221                                         'height' => $attachment_img_height
 222                                 ]
 223                         ];
 224                 }
 225
 226                 $att_bbcode = add_page_info_data($attachment);
 227                 $body .= $att_bbcode;
 228         }
 229
 230         // Convert links with empty descriptions to links without an explicit description
 231         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 232
 233         if (!empty($orig_post)) {
 234                 $str_group_allow   = $orig_post['allow_gid'];
 235                 $str_contact_allow = $orig_post['allow_cid'];
 236                 $str_group_deny    = $orig_post['deny_gid'];
 237                 $str_contact_deny  = $orig_post['deny_cid'];
 238                 $location          = $orig_post['location'];
 239                 $coord             = $orig_post['coord'];
 240                 $verb              = $orig_post['verb'];
 241                 $objecttype        = $orig_post['object-type'];
 242                 $app               = $orig_post['app'];
 243                 $categories        = $orig_post['file'];
 244                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 245                 $body              = trim($body);
 246                 $private           = $orig_post['private'];
 247                 $pubmail_enabled   = $orig_post['pubmail'];
 248                 $network           = $orig_post['network'];
 249                 $guid              = $orig_post['guid'];
 250                 $extid             = $orig_post['extid'];
 251
 252         } else {
 253
 254                 /*
 255                  * if coming from the API and no privacy settings are set,
 256                  * use the user default permissions - as they won't have
 257                  * been supplied via a form.
 258                  */
 259                 if ($api_source
 260                         && !array_key_exists('contact_allow', $_REQUEST)
 261                         && !array_key_exists('group_allow', $_REQUEST)
 262                         && !array_key_exists('contact_deny', $_REQUEST)
 263                         && !array_key_exists('group_deny', $_REQUEST)) {
 264                         $str_group_allow   = $user['allow_gid'];
 265                         $str_contact_allow = $user['allow_cid'];
 266                         $str_group_deny    = $user['deny_gid'];
 267                         $str_contact_deny  = $user['deny_cid'];
 268                 } else {
 269                         // use the posted permissions
 270
 271                         $aclFormatter = DI::aclFormatter();
 272
 273                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 274                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 275                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 276                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 277                 }
 278
 279                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 280                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 281                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 282                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 283                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 284                 $body              = trim($body);
 285                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 286                 $guid              = System::createUUID();
 287
 288                 $postopts = $_REQUEST['postopts'] ?? '';
 289
 290                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 291
 292                 // If this is a comment, set the permissions from the parent.
 293
 294                 if ($toplevel_item) {
 295                         // for non native networks use the network of the original post as network of the item
 296                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 297                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 298                                 && ($network == "")) {
 299                                 $network = $toplevel_item['network'];
 300                         }
 301
 302                         $str_contact_allow = $toplevel_item['allow_cid'];
 303                         $str_group_allow   = $toplevel_item['allow_gid'];
 304                         $str_contact_deny  = $toplevel_item['deny_cid'];
 305                         $str_group_deny    = $toplevel_item['deny_gid'];
 306                         $private           = $toplevel_item['private'];
 307
 308                         $wall              = $toplevel_item['wall'];
 309                 }
 310
 311                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 312
 313                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 314                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 315                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 316                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 317                         }
 318                 }
 319
 320                 if (!strlen($body)) {
 321                         if ($preview) {
 322                                 exit();
 323                         }
 324                         info(DI::l10n()->t('Empty post discarded.') . EOL);
 325                         if (!empty($_REQUEST['return'])) {
 326                                 DI::baseUrl()->redirect($return_path);
 327                         }
 328                         exit();
 329                 }
 330         }
 331
 332         if (!empty($categories)) {
 333                 // get the "fileas" tags for this post
 334                 $filedas = FileTag::fileToArray($categories);
 335         }
 336
 337         // save old and new categories, so we can determine what needs to be deleted from pconfig
 338         $categories_old = $categories;
 339         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 340         $categories_new = $categories;
 341
 342         if (!empty($filedas) && is_array($filedas)) {
 343                 // append the fileas stuff to the new categories list
 344                 $categories .= FileTag::arrayToFile($filedas);
 345         }
 346
 347         // get contact info for poster
 348
 349         $author = null;
 350         $self   = false;
 351         $contact_id = 0;
 352
 353         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 354                 $self = true;
 355                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 356         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 357                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 358         }
 359
 360         if (DBA::isResult($author)) {
 361                 $contact_id = $author['id'];
 362         }
 363
 364         // get contact info for owner
 365         if ($profile_uid == local_user() || $allow_comment) {
 366                 $contact_record = $author;
 367         } else {
 368                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 369         }
 370
 371         // Look for any tags and linkify them
 372         $str_tags = '';
 373         $inform   = '';
 374
 375         $tags = BBCode::getTags($body);
 376
 377         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 378                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 379         }
 380
 381         $tagged = [];
 382
 383         $private_forum = false;
 384         $only_to_forum = false;
 385         $forum_contact = [];
 386
 387         if (count($tags)) {
 388                 foreach ($tags as $tag) {
 389                         $tag_type = substr($tag, 0, 1);
 390
 391                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 392                                 continue;
 393                         }
 394
 395                         /*
 396                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 397                          * Robert Johnson should be first in the $tags array
 398                          */
 399                         $fullnametagged = false;
 400                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 401                         foreach ($tagged as $nextTag) {
 402                                 if (stristr($nextTag, $tag . ' ')) {
 403                                         $fullnametagged = true;
 404                                         break;
 405                                 }
 406                         }
 407                         if ($fullnametagged) {
 408                                 continue;
 409                         }
 410
 411                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 412                         if ($success['replaced']) {
 413                                 $tagged[] = $tag;
 414                         }
 415                         // When the forum is private or the forum is addressed with a "!" make the post private
 416                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 417                                 $private_forum = $success['contact']['prv'];
 418                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 419                                 $private_id = $success['contact']['id'];
 420                                 $forum_contact = $success['contact'];
 421                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 422                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 423                                 $private_forum = false;
 424                                 $only_to_forum = true;
 425                                 $private_id = $success['contact']['id'];
 426                                 $forum_contact = $success['contact'];
 427                         }
 428                 }
 429         }
 430
 431         $original_contact_id = $contact_id;
 432
 433         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 434                 // we tagged a forum in a top level post. Now we change the post
 435                 $private = $private_forum;
 436
 437                 $str_group_allow = '';
 438                 $str_contact_deny = '';
 439                 $str_group_deny = '';
 440                 if ($private_forum) {
 441                         $str_contact_allow = '<' . $private_id . '>';
 442                 } else {
 443                         $str_contact_allow = '';
 444                 }
 445                 $contact_id = $private_id;
 446                 $contact_record = $forum_contact;
 447                 $_REQUEST['origin'] = false;
 448                 $wall = 0;
 449         }
 450
 451         /*
 452          * When a photo was uploaded into the message using the (profile wall) ajax
 453          * uploader, The permissions are initially set to disallow anybody but the
 454          * owner from seeing it. This is because the permissions may not yet have been
 455          * set for the post. If it's private, the photo permissions should be set
 456          * appropriately. But we didn't know the final permissions on the post until
 457          * now. So now we'll look for links of uploaded messages that are in the
 458          * post and set them to the same permissions as the post itself.
 459          */
 460
 461         $match = null;
 462
 463         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 464                 $objecttype = Activity\ObjectType::IMAGE;
 465         }
 466
 467         /*
 468          * Next link in any attachment references we find in the post.
 469          */
 470         $match = false;
 471
 472         /// @todo these lines should be moved to Model/Attach (Once it exists)
 473         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 474                 $attaches = $match[1];
 475                 if (count($attaches)) {
 476                         foreach ($attaches as $attach) {
 477                                 // Ensure to only modify attachments that you own
 478                                 $srch = '<' . intval($original_contact_id) . '>';
 479
 480                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 481                                                 'id' => $attach];
 482                                 if (!Attach::exists($condition)) {
 483                                         continue;
 484                                 }
 485
 486                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 487                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 488                                 $condition = ['id' => $attach];
 489                                 Attach::update($fields, $condition);
 490                         }
 491                 }
 492         }
 493
 494         // embedded bookmark or attachment in post? set bookmark flag
 495
 496         $data = BBCode::getAttachmentData($body);
 497         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 498                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 499                 $posttype = Item::PT_PAGE;
 500                 $objecttype =  Activity\ObjectType::BOOKMARK;
 501         }
 502
 503         $body = DI::bbCodeVideo()->transform($body);
 504
 505         // Fold multi-line [code] sequences
 506         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 507
 508         $body = BBCode::scaleExternalImages($body);
 509
 510         // Setting the object type if not defined before
 511         if (!$objecttype) {
 512                 $objecttype = Activity\ObjectType::NOTE; // Default value
 513                 $objectdata = BBCode::getAttachedData($body);
 514
 515                 if ($objectdata["type"] == "link") {
 516                         $objecttype = Activity\ObjectType::BOOKMARK;
 517                 } elseif ($objectdata["type"] == "video") {
 518                         $objecttype = Activity\ObjectType::VIDEO;
 519                 } elseif ($objectdata["type"] == "photo") {
 520                         $objecttype = Activity\ObjectType::IMAGE;
 521                 }
 522
 523         }
 524
 525         $attachments = '';
 526         $match = false;
 527
 528         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 529                 foreach ($match[2] as $mtch) {
 530                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 531                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 532                         if ($attachment !== false) {
 533                                 if (strlen($attachments)) {
 534                                         $attachments .= ',';
 535                                 }
 536                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 537                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 538                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 539                         }
 540                         $body = str_replace($match[1],'',$body);
 541                 }
 542         }
 543
 544         if (!strlen($verb)) {
 545                 $verb = Activity::POST;
 546         }
 547
 548         if ($network == "") {
 549                 $network = Protocol::DFRN;
 550         }
 551
 552         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 553
 554         // even if the post arrived via API we are considering that it
 555         // originated on this site by default for determining relayability.
 556
 557         // Don't use "defaults" here. It would turn 0 to 1
 558         if (!isset($_REQUEST['origin'])) {
 559                 $origin = 1;
 560         } else {
 561                 $origin = $_REQUEST['origin'];
 562         }
 563
 564         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 565
 566         // Fallback so that we alway have a parent uri
 567         if (!$thr_parent_uri || !$toplevel_item_id) {
 568                 $thr_parent_uri = $uri;
 569         }
 570
 571         $datarray = [];
 572         $datarray['uid']           = $profile_uid;
 573         $datarray['wall']          = $wall;
 574         $datarray['gravity']       = $gravity;
 575         $datarray['network']       = $network;
 576         $datarray['contact-id']    = $contact_id;
 577         $datarray['owner-name']    = $contact_record['name'];
 578         $datarray['owner-link']    = $contact_record['url'];
 579         $datarray['owner-avatar']  = $contact_record['thumb'];
 580         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 581         $datarray['author-name']   = $author['name'];
 582         $datarray['author-link']   = $author['url'];
 583         $datarray['author-avatar'] = $author['thumb'];
 584         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 585         $datarray['created']       = DateTimeFormat::utcNow();
 586         $datarray['edited']        = DateTimeFormat::utcNow();
 587         $datarray['commented']     = DateTimeFormat::utcNow();
 588         $datarray['received']      = DateTimeFormat::utcNow();
 589         $datarray['changed']       = DateTimeFormat::utcNow();
 590         $datarray['extid']         = $extid;
 591         $datarray['guid']          = $guid;
 592         $datarray['uri']           = $uri;
 593         $datarray['title']         = $title;
 594         $datarray['body']          = $body;
 595         $datarray['app']           = $app;
 596         $datarray['location']      = $location;
 597         $datarray['coord']         = $coord;
 598         $datarray['tag']           = $str_tags;
 599         $datarray['file']          = $categories;
 600         $datarray['inform']        = $inform;
 601         $datarray['verb']          = $verb;
 602         $datarray['post-type']     = $posttype;
 603         $datarray['object-type']   = $objecttype;
 604         $datarray['allow_cid']     = $str_contact_allow;
 605         $datarray['allow_gid']     = $str_group_allow;
 606         $datarray['deny_cid']      = $str_contact_deny;
 607         $datarray['deny_gid']      = $str_group_deny;
 608         $datarray['private']       = $private;
 609         $datarray['pubmail']       = $pubmail_enabled;
 610         $datarray['attach']        = $attachments;
 611
 612         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 613         $datarray['parent-uri']    = $thr_parent_uri;
 614
 615         $datarray['postopts']      = $postopts;
 616         $datarray['origin']        = $origin;
 617         $datarray['moderated']     = false;
 618         $datarray['object']        = $object;
 619
 620         /*
 621          * These fields are for the convenience of addons...
 622          * 'self' if true indicates the owner is posting on their own wall
 623          * If parent is 0 it is a top-level post.
 624          */
 625         $datarray['parent']        = $toplevel_item_id;
 626         $datarray['self']          = $self;
 627
 628         // This triggers posts via API and the mirror functions
 629         $datarray['api_source'] = $api_source;
 630
 631         // This field is for storing the raw conversation data
 632         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 633
 634         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 635         if (DBA::isResult($conversation)) {
 636                 if ($conversation['conversation-uri'] != '') {
 637                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 638                 }
 639                 if ($conversation['conversation-href'] != '') {
 640                         $datarray['conversation-href'] = $conversation['conversation-href'];
 641                 }
 642         }
 643
 644         if ($orig_post) {
 645                 $datarray['edit'] = true;
 646         } else {
 647                 // If this was a share, add missing data here
 648                 $datarray = Item::addShareDataFromOriginal($datarray);
 649
 650                 $datarray['edit'] = false;
 651         }
 652
 653         // Check for hashtags in the body and repair or add hashtag links
 654         if ($preview || $orig_post) {
 655                 Item::setHashtags($datarray);
 656         }
 657
 658         // preview mode - prepare the body for display and send it via json
 659         if ($preview) {
 660                 // We set the datarray ID to -1 because in preview mode the dataray
 661                 // doesn't have an ID.
 662                 $datarray["id"] = -1;
 663                 $datarray["item_id"] = -1;
 664                 $datarray["author-network"] = Protocol::DFRN;
 665
 666                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager(DI::args()->getQueryString()), 'search', false, true);
 667                 Logger::log('preview: ' . $o);
 668                 echo json_encode(['preview' => $o]);
 669                 exit();
 670         }
 671
 672         Hook::callAll('post_local',$datarray);
 673
 674         if (!empty($datarray['cancel'])) {
 675                 Logger::log('mod_item: post cancelled by addon.');
 676                 if ($return_path) {
 677                         DI::baseUrl()->redirect($return_path);
 678                 }
 679
 680                 $json = ['cancel' => 1];
 681                 if (!empty($_REQUEST['jsreload'])) {
 682                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 683                 }
 684
 685                 echo json_encode($json);
 686                 exit();
 687         }
 688
 689         if ($orig_post) {
 690                 // Fill the cache field
 691                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 692                 Item::putInCache($datarray);
 693
 694                 $fields = [
 695                         'title' => $datarray['title'],
 696                         'body' => $datarray['body'],
 697                         'tag' => $datarray['tag'],
 698                         'attach' => $datarray['attach'],
 699                         'file' => $datarray['file'],
 700                         'rendered-html' => $datarray['rendered-html'],
 701                         'rendered-hash' => $datarray['rendered-hash'],
 702                         'edited' => DateTimeFormat::utcNow(),
 703                         'changed' => DateTimeFormat::utcNow()];
 704
 705                 Item::update($fields, ['id' => $post_id]);
 706
 707                 // update filetags in pconfig
 708                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 709
 710                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 711                         Logger::log('return: ' . $return_path);
 712                         DI::baseUrl()->redirect($return_path);
 713                 }
 714                 exit();
 715         }
 716
 717         unset($datarray['edit']);
 718         unset($datarray['self']);
 719         unset($datarray['api_source']);
 720
 721         if ($origin) {
 722                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 723                 if (!empty($signed)) {
 724                         $datarray['diaspora_signed_text'] = json_encode($signed);
 725                 }
 726         }
 727
 728         $post_id = Item::insert($datarray);
 729
 730         if (!$post_id) {
 731                 Logger::log("Item wasn't stored.");
 732                 DI::baseUrl()->redirect($return_path);
 733         }
 734
 735         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 736
 737         if (!DBA::isResult($datarray)) {
 738                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 739                 DI::baseUrl()->redirect($return_path);
 740         }
 741
 742         // update filetags in pconfig
 743         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 744
 745         // These notifications are sent if someone else is commenting other your wall
 746         if ($toplevel_item_id) {
 747                 if ($contact_record != $author) {
 748                         notification([
 749                                 'type'         => NOTIFY_COMMENT,
 750                                 'notify_flags' => $user['notify-flags'],
 751                                 'language'     => $user['language'],
 752                                 'to_name'      => $user['username'],
 753                                 'to_email'     => $user['email'],
 754                                 'uid'          => $user['uid'],
 755                                 'item'         => $datarray,
 756                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 757                                 'source_name'  => $datarray['author-name'],
 758                                 'source_link'  => $datarray['author-link'],
 759                                 'source_photo' => $datarray['author-avatar'],
 760                                 'verb'         => Activity::POST,
 761                                 'otype'        => 'item',
 762                                 'parent'       => $toplevel_item_id,
 763                                 'parent_uri'   => $toplevel_item['uri']
 764                         ]);
 765                 }
 766         } else {
 767                 if (($contact_record != $author) && !count($forum_contact)) {
 768                         notification([
 769                                 'type'         => NOTIFY_WALL,
 770                                 'notify_flags' => $user['notify-flags'],
 771                                 'language'     => $user['language'],
 772                                 'to_name'      => $user['username'],
 773                                 'to_email'     => $user['email'],
 774                                 'uid'          => $user['uid'],
 775                                 'item'         => $datarray,
 776                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 777                                 'source_name'  => $datarray['author-name'],
 778                                 'source_link'  => $datarray['author-link'],
 779                                 'source_photo' => $datarray['author-avatar'],
 780                                 'verb'         => Activity::POST,
 781                                 'otype'        => 'item'
 782                         ]);
 783                 }
 784         }
 785
 786         Hook::callAll('post_local_end', $datarray);
 787
 788         if (strlen($emailcc) && $profile_uid == local_user()) {
 789                 $recipients = explode(',', $emailcc);
 790                 if (count($recipients)) {
 791                         foreach ($recipients as $recipient) {
 792                                 $address = trim($recipient);
 793                                 if (!strlen($address)) {
 794                                         continue;
 795                                 }
 796                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 797                                         $datarray, $address, $author['thumb'] ?? ''));
 798                         }
 799                 }
 800         }
 801
 802         // Insert an item entry for UID=0 for global entries.
 803         // We now do it in the background to save some time.
 804         // This is important in interactive environments like the frontend or the API.
 805         // We don't fork a new process since this is done anyway with the following command
 806         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 807
 808         // When we are doing some forum posting via ! we have to start the notifier manually.
 809         // These kind of posts don't initiate the notifier call in the item class.
 810         if ($only_to_forum) {
 811                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 812         }
 813
 814         Logger::log('post_complete');
 815
 816         if ($api_source) {
 817                 return $post_id;
 818         }
 819
 820         item_post_return(DI::baseUrl(), $api_source, $return_path);
 821         // NOTREACHED
 822 }
 823
 824 function item_post_return($baseurl, $api_source, $return_path)
 825 {
 826         // figure out how to return, depending on from whence we came
 827     $a = DI::app();
 828
 829         if ($api_source) {
 830                 return;
 831         }
 832
 833         if ($return_path) {
 834                 DI::baseUrl()->redirect($return_path);
 835         }
 836
 837         $json = ['success' => 1];
 838         if (!empty($_REQUEST['jsreload'])) {
 839                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 840         }
 841
 842         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 843
 844         echo json_encode($json);
 845         exit();
 846 }
 847
 848 function item_content(App $a)
 849 {
 850         if (!Session::isAuthenticated()) {
 851                 return;
 852         }
 853
 854         $o = '';
 855
 856         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 857                 if (DI::mode()->isAjax()) {
 858                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 859                 } else {
 860                         if (!empty($a->argv[3])) {
 861                                 $o = drop_item($a->argv[2], $a->argv[3]);
 862                         }
 863                         else {
 864                                 $o = drop_item($a->argv[2]);
 865                         }
 866                 }
 867
 868                 if (DI::mode()->isAjax()) {
 869                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 870                         echo json_encode([intval($a->argv[2]), intval($o)]);
 871                         exit();
 872                 }
 873         }
 874
 875         return $o;
 876 }
 877
 878 /**
 879  * This function removes the tag $tag from the text $body and replaces it with
 880  * the appropriate link.
 881  *
 882  * @param App     $a
 883  * @param string  $body     the text to replace the tag in
 884  * @param string  $inform   a comma-seperated string containing everybody to inform
 885  * @param string  $str_tags string to add the tag to
 886  * @param integer $profile_uid
 887  * @param string  $tag      the tag to replace
 888  * @param string  $network  The network of the post
 889  *
 890  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 891  * @throws ImagickException
 892  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 893  */
 894 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 895 {
 896         $replaced = false;
 897         $r = null;
 898
 899         //is it a person tag?
 900         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 901                 $tag_type = substr($tag, 0, 1);
 902                 //is it already replaced?
 903                 if (strpos($tag, '[url=')) {
 904                         //append tag to str_tags
 905                         if (!stristr($str_tags, $tag)) {
 906                                 if (strlen($str_tags)) {
 907                                         $str_tags .= ',';
 908                                 }
 909                                 $str_tags .= $tag;
 910                         }
 911
 912                         // Checking for the alias that is used for OStatus
 913                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 914                         if (preg_match($pattern, $tag, $matches)) {
 915                                 $data = Contact::getDetailsByURL($matches[1]);
 916
 917                                 if ($data["alias"] != "") {
 918                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 919
 920                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 921                                                 if (strlen($str_tags)) {
 922                                                         $str_tags .= ',';
 923                                                 }
 924
 925                                                 $str_tags .= $newtag;
 926                                         }
 927                                 }
 928                         }
 929
 930                         return $replaced;
 931                 }
 932
 933                 //get the person's name
 934                 $name = substr($tag, 1);
 935
 936                 // Sometimes the tag detection doesn't seem to work right
 937                 // This is some workaround
 938                 $nameparts = explode(" ", $name);
 939                 $name = $nameparts[0];
 940
 941                 // Try to detect the contact in various ways
 942                 if (strpos($name, 'http://')) {
 943                         // At first we have to ensure that the contact exists
 944                         Contact::getIdForURL($name);
 945
 946                         // Now we should have something
 947                         $contact = Contact::getDetailsByURL($name);
 948                 } elseif (strpos($name, '@')) {
 949                         // This function automatically probes when no entry was found
 950                         $contact = Contact::getDetailsByAddr($name);
 951                 } else {
 952                         $contact = false;
 953                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 954
 955                         if (strrpos($name, '+')) {
 956                                 // Is it in format @nick+number?
 957                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 958                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 959                         }
 960
 961                         // select someone by nick or attag in the current network
 962                         if (!DBA::isResult($contact) && ($network != "")) {
 963                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 964                                                 $name, $name, $network, $profile_uid];
 965                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 966                         }
 967
 968                         //select someone by name in the current network
 969                         if (!DBA::isResult($contact) && ($network != "")) {
 970                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 971                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 972                         }
 973
 974                         // select someone by nick or attag in any network
 975                         if (!DBA::isResult($contact)) {
 976                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 977                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 978                         }
 979
 980                         // select someone by name in any network
 981                         if (!DBA::isResult($contact)) {
 982                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 983                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 984                         }
 985                 }
 986
 987                 // Check if $contact has been successfully loaded
 988                 if (DBA::isResult($contact)) {
 989                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 990                                 $inform .= ',';
 991                         }
 992
 993                         if (isset($contact["id"])) {
 994                                 $inform .= 'cid:' . $contact["id"];
 995                         } elseif (isset($contact["notify"])) {
 996                                 $inform  .= $contact["notify"];
 997                         }
 998
 999                         $profile = $contact["url"];
1000                         $alias   = $contact["alias"];
1001                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1002                 }
1003
1004                 //if there is an url for this persons profile
1005                 if (isset($profile) && ($newname != "")) {
1006                         $replaced = true;
1007                         // create profile link
1008                         $profile = str_replace(',', '%2c', $profile);
1009                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1010                         $body = str_replace($tag_type . $name, $newtag, $body);
1011                         // append tag to str_tags
1012                         if (!stristr($str_tags, $newtag)) {
1013                                 if (strlen($str_tags)) {
1014                                         $str_tags .= ',';
1015                                 }
1016                                 $str_tags .= $newtag;
1017                         }
1018
1019                         /*
1020                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1021                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1022                          */
1023                         if (!empty($alias)) {
1024                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1025                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1026                                         if (strlen($str_tags)) {
1027                                                 $str_tags .= ',';
1028                                         }
1029                                         $str_tags .= $newtag;
1030                                 }
1031                         }
1032                 }
1033         }
1034
1035         return ['replaced' => $replaced, 'contact' => $contact];
1036 }
1037
1038 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1039 {
1040         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1041                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1042                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1043                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1044                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1045                                 $tags[] = $contact;
1046                         }
1047                 }
1048         } else {
1049                 $implicit_mentions = [
1050                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1051                 ];
1052
1053                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1054
1055                 foreach ($parent_terms as $parent_term) {
1056                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1057                 }
1058
1059                 foreach ($implicit_mentions as $url => $label) {
1060                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1061                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1062                         }
1063                 }
1064         }
1065
1066         return $tags;
1067 }